#include<stdio.h>

//int main()
//{
//	int a = 9;
//	int* p = &a;
//	printf("%d", sizeof(p));
//}


//int main()
//{
//    int wei, high;
//    scanf("%d %d", &wei, &high);
//
//    double high2 = high / 100.0;
//
//    printf("%.2lf", wei / (high2 * high2));
//
//    return 0;
//}


int main() {
    int weight = 0, height = 0;
    scanf("%d %d", &weight, &height);
    printf("%.2f\n", weight / (height / 100.0 * height / 100.0));
    return 0;
}